Systems and methods using expandable bodies to push apart cortical bone surfaces
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a technology of expandable bodies and cortical bones, applied in the field of bone conditions, can solve the problems of overall adverse impact on life quality and chronic complications, and achieve the effect of reducing fractures
Inactive Publication Date: 2007-01-23
ORTHOPHOENIX
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[0004]The invention provides improved systems and methods for treating bone using one or more expandable bodies. The systems and methods insert an expandable body in a collapsed configuration into a space defined between cortical bone surfaces. The space can, e.g., comprise a fracture or an intervertebral space left after removal of the disk b
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These conditions, if not successfully treated, can result in deformities, ch
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[0018]The use of expandable bodies to treat bones is disclosed in U.S. Pat. Nos. 4,969,888 and 5,108,404. The systems and methods disclosed in these patents treat bone from the inside out. That is, the systems and methods deploy an expandable body into the interior volume of the bone. Expansion of the body inside the bone compacts or compresses surrounding cancellous bone. The compaction of cancellous bone inside the bone exerts interior force upon outside cortical bone, making it possible to elevate or push broken and compressed cortical bone back to or near its original prefracture position.
[0019]There are times, however, when fracture reduction is indicated by applying external pressure directly on cortical bone surfaces. FIGS. 1 and 2 exemplify one representative circumstance.
[0020]FIG. 1 shows a normal human distal radius 10, near the elbow joint 12, where the radius 10 adjoins the humerus 14. FIG. 2 shows a fracture 16 in the distal radius 10. The fracture 16 can be caused by ...
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Abstract
Systems and methods insert an expandable body in a collapsed configuration into a space defined between cortical bone surfaces. The space can, e.g., comprise a fracture or an intervertebral space. The systems and methods cause expansion of the expandable body within the space, thereby pushing apart the cortical bone surfaces to, e.g., reduce the fracture or push apart adjacent vertebral bodies as part of a therapeutic procedure.
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RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 08 / 986,876, filed 8 Dec. 1997, now abandoned, and entitled “Systems and Methods Using Expandable Bodies to Push Apart Cortical Bone Surfaces,” which is a continuation-in-part of U.S. patent application Ser. No. 08 / 871,114, filed Jun. 9, 1997, now U.S. Pat. No. 6,248,110, and entitled “Systems and Methods for Treatment of Fractured or Diseased Bone Using Expandable Bodies,” which is a continuation-in-part of U.S. patent application Ser. No. 08 / 659,678, filed Jun. 5, 1996, now U.S. Pat. No. 5,827,289, which is a continuation-in-part of U.S. patent application Ser. No. 08 / 485,394, filed Jun. 7, 1995, now abandoned, which is a continuation-in-part of U.S. patent application Ser. No. 08 / 188,224, filed Jan. 26, 1994, now abandoned, entitled, “Improved Inflatable Device For Use In Surgical Protocol Relating To Fixation Of Bone.”FIELD OF THE INVENTION[0002]The invention relates to the treatment ...
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